2.4.4 Symbols in the Result Bar
* The measurement is not yet stable (the color of the box is brown).
< The measurement is below the lower limit of the calibration range.
> The measurement is above than the upper limit of the calibration range.
<< The measurement is below the measuring range of the sensor.
>> The measurement is above the measuring range of the sensor.
# A one-point calibration is required.
! A multi-point calibration is required.
P P stands for poisoning. This indicates too much interference from other ions. This happens especially when
the sensor is sensitive to other ions.
For example, the ammonium sensor is quite sensitive to potassium ions. When you have a solution with a
high potassium concentration and a low ammonium concentration, the ammonium sensor only detects
potassium ions. In this case, the measurement for ammonium is unreliable.
R The sensor shows response, but not enough for an accurate measurement. It needs replacement (the dot
has turned blue).
Defective The sensor shows no response and should be replaced immediately.
Except for the indication ‘Defective’, all prefixes are also stored in the data file!
2.4.5 Selecting Names and Units
Clicking on ‘unit’ with the right mouse button will display a list of possible units.
Click on the desired unit in this list and the results of this box will be shown in this unit.
You can choose a different unit for each parameter.
Clicking on the name in the box with the right mouse button will display a list of possible names.
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